diff --git a/package.json b/package.json
index 3014595a..021e0b26 100644
--- a/package.json
+++ b/package.json
@@ -64,7 +64,7 @@
 		"prettier": "^2.0.5",
 		"rimraf": "^3.0.2",
 		"ts-jest": "~27.1.0",
-		"typescript": "~4.5.0"
+		"typescript": "~4.9.0"
 	},
 	"dependenciesMeta": {
 		"@arkecosystem/core": {
diff --git a/packages/guardian-api/package.json b/packages/guardian-api/package.json
index f666a1a3..d27bbda1 100644
--- a/packages/guardian-api/package.json
+++ b/packages/guardian-api/package.json
@@ -81,7 +81,7 @@
 		"rimraf": "^3.0.2",
 		"ts-jest": "~27.1.0",
 		"typedoc": "~0.22.0",
-		"typescript": "~4.5.0"
+		"typescript": "~4.9.0"
 	},
 	"engines": {
 		"node": ">=10.x"
diff --git a/packages/guardian-crypto/package.json b/packages/guardian-crypto/package.json
index 602f1cfa..9d7d87c0 100644
--- a/packages/guardian-crypto/package.json
+++ b/packages/guardian-crypto/package.json
@@ -58,7 +58,7 @@
         "rimraf": "^3.0.2",
         "ts-jest": "~27.1.0",
         "typedoc": "~0.22.0",
-        "typescript": "~4.5.0",
+        "typescript": "~4.9.0",
         "util": "^0.12.3"
     },
     "publishConfig": {
diff --git a/packages/guardian-examples/package.json b/packages/guardian-examples/package.json
index 2e5c11a6..a10ef31c 100644
--- a/packages/guardian-examples/package.json
+++ b/packages/guardian-examples/package.json
@@ -44,6 +44,6 @@
         "@types/rimraf": "^3.0.0",
         "rimraf": "^3.0.2",
         "typedoc": "~0.22.0",
-        "typescript": "~4.5.0"
+        "typescript": "~4.9.0"
     }
 }
diff --git a/packages/guardian-transactions/package.json b/packages/guardian-transactions/package.json
index 645653b8..2ccdd1ce 100644
--- a/packages/guardian-transactions/package.json
+++ b/packages/guardian-transactions/package.json
@@ -69,7 +69,7 @@
         "rimraf": "^3.0.2",
         "ts-jest": "~27.1.0",
         "typedoc": "~0.22.0",
-        "typescript": "~4.5.0"
+        "typescript": "~4.9.0"
     },
     "publishConfig": {
         "access": "public"